US4928507A - Methods and apparatus for manufacturing seamless tube - Google Patents

Methods and apparatus for manufacturing seamless tube Download PDF

Info

Publication number
US4928507A
US4928507A US07/137,463 US13746387A US4928507A US 4928507 A US4928507 A US 4928507A US 13746387 A US13746387 A US 13746387A US 4928507 A US4928507 A US 4928507A
Authority
US
United States
Prior art keywords
hollow
piercing
ingot
piercing tool
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/137,463
Other languages
English (en)
Inventor
Karlhans Staat
Hermann Moltner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kocks Technik GmbH and Co KG
Original Assignee
Kocks Technik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kocks Technik GmbH and Co KG filed Critical Kocks Technik GmbH and Co KG
Application granted granted Critical
Publication of US4928507A publication Critical patent/US4928507A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
    • B21C1/26—Push-bench drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/04—Cooling or lubricating mandrels during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

Definitions

  • the invention relates to a method of an apparatus for manufacturing seamless tubes.
  • ingots hot from rolling are pierced by means of an internal tool or a press or skew-rolling line to form a hollow ingot, and are subsequently elongated by a stretching unit, such as a push bench or rolling line, provided with a mandrel rod to form the tubular bloom, and are finally finish-rolled.
  • a stretching unit such as a push bench or rolling line
  • the ingots are placed by means of an internal tool which, for example, in the case of a piercing press, comprises the piercing mandrel, whereas, in the case of skew-rolling line, the internal tool comprises a shaft rod on the end of which is mounted a plug having a diameter which is somewhat larger than that of the shaft rod.
  • the hollow ingots produced in this manner are then elongated to form a tubular bloom in a second process step performed on different kinds of rolling lines or on a push bench.
  • the stretching units have the common feature that the hollow ingot is elongated by a mandrel rod or plug rod which is inserted before elongation after the internal tool used during piercing has been withdrawn, or the shaft rod, freed from the plug, of the skew-rolling line used for piercing is involved which is left in the hollow ingot after the piercing operation.
  • a push bench is used for elongation of the hollow ingot to form the tubular bloom, an abutment in the hollow ingot must be offered to the leading end face of the mandrel rod.
  • this abutment is the bottom of the hollow ingot closing the end of the bore, whereas hollow ingots produced on a skew-rolling line do not have such a bottom, but, before stretching to form the tubular bloom, receive the abutment for the mandrel rod by swageing at an end portion, a special internal tool generally being required for this swageing operation.
  • Scaling of the interior wall is particularly disadvantageous when it occurs before elongation to form the tubular bloom, since the layer of scale then existing between the inserted mandrel rod of the stretching unit and the work-material is pressed into the wall of the tubular bloom by the stretching unit during deformation to form the tubular bloom, hence leading to a rough and uneven interior wall of the tubular bloom in the first instance.
  • This cannot be eliminated during finish-rolling by, for example, a stretch-reducing rolling mill which operates without an internal tool, so that the finished tubes also have a rough interior wall.
  • this layer of scale causes increased wear on the expensive mandrel rods of the stretching units, which results in a corresponding increase in the operating costs.
  • the mandrel rod drives the hollow ingot in a push bench and is therefore subjected to particularly high mechanical stress
  • the mandrel rods are subjected to a considerable amount of wear.
  • the leading end portions of the mandrel rods are also used a internal tools when swaging an abutment for a mandrel rod under the high thermal and mechanical stress, and are subjected to additional stress.
  • the internally water-cooled rod which is cold during insertion draws a large quantity of heat from the work-material during the long contact time, hence rendering deformation difficult and increasing the stress on the stretching units in the case of a high energy requirement.
  • the object of the invention is to avoid such scaling.
  • the invention resides in a method of manufacturing seamless tubes, in which ingots hot from rolling are pieced by means of an internal tool of a press or skew-rolling line to form a hollow ingot, and are subsequently elongated to form the tubular bloom by a stretching unit having a mandrel rod and are finally finish-rolled, and in which, when introducing or withdrawing the internal tool into or out of the hollow ingot and/or the mandrel rod into or out of the tubular bloom, an inert or non-oxidising gas is at the same time introduced into the vacated interior space in the hollow ingot or in the tubular bloom.
  • This inert gas displaces the air and hence the oxygen from the interior space of the hollow ingot or of the tubular bloom or prevents the air from entering the interior space, so that scaling of the interior wall does not occur. Hence, a satisfactory surface of the interior wall is maintained up to the finished tube. Increased wear on the mandrel rod as a result of the abrasive action of the scale is avoided, hence resulting in a perceptible decrease in the operating costs. Furthermore, there is no longer any need to leave the internal tool in the hollow ingot after piercing out of consideration for the avoidance of scaling, and the tool may be withdrawn without the risk of intrusion of air into the interior space.
  • the internal tools are thereby protected, since they are not subjected to the considerable increase in temperature and high mechanical stress which otherwise occur when the same internal tool is used, for example, during swaging and pushing and not only during piercing. Finally, the withdrawal of the internal tool has an advantageous effect on the temperature of the hollow ingot, since short contact times are achieved and therefore less heat is dissipated from the hollow ingot by way of the internal tool.
  • the inert gas is drawn into the hollow ingot or the tubular bloom chiefly by the suction occurring upon withdrawal of the internal tool or the mandrel rod.
  • the inert gas may be introduced through bores in the internal tool or in the mandrel rod.
  • the inert gas can be sucked into the interior space through the said opening or open end. It may be advisable to subject the inert gas to a slight excess pressure in order to assist the sucking of the inert gas into the interior space.
  • Deoxidising agents can be introduced into the interior space of the hollow ingot instead of an inert gas, or together therewith, to bond any residual oxygen still present.
  • the inert gas, and possible the deoxidising agent remains in the interior space or the hollow ingot or of the tubular bloom for some time after the internal tool has been withdrawn, since a more or less closed bottom frequently prevents the egress of the inert gas.
  • Even intermediate stretching of the hollow ingot on a hollow ingot rolling line without an internal tool would not remove the inert gas from the interior space. It is advantageous if the hollow ingot or the tubular bloom is conveyed substantially only transversely of the longitudinal direction after introduction of the inert gas. This avoids flows of air which would displace the inert gas from the interior space.
  • the invention includes a plant for manufacturing seamless tubes, having a press or a skew-rolling line provided with an internal tool for piercing and a stretching unit provided with a mandrel rod, the internal tool for piercing, swageing or stretching having an axial feed bore for a non-oxidising or inert gas, which bore leads to an open end of the tool and/or opens into substantially radial outlet bores in the tool.
  • inert gas may be fed through these bores, or alternatively, only a portion thereof, the latter particularly when the bottom of the hollow ingot or of the tubular bloom has a suitable opening and communicates with a reservoir for inert gas.
  • the invention also includes a plant for manufacturing seamless tubes having a press or a skew-rolling line provided with an internal tool for piercing, a stretch unit provided with a mandrel rod, and a tool or filling tube for feeding a non-oxidising or inert gas in an axial direction and for engaging the end face of the hollow ingot or the tubular bloom.
  • the hollow ingot or the tubular bloom must be open at the relevant end face or have at least a through opening.
  • FIG. 1 is a diagrammatic sectional view showing a tubular bloom having a mandrel rod located in the interior thereof, during stretching in a skew-rolling line in accordance with one embodiment of the present invention
  • FIG. 2 shows the tubular bloom with mandrel rod of FIG. 1 before stretching
  • FIGS. 3 to 5 are sectional views showing a hollow ingot with a plug rod located in the interior thereof during piercing in a skew-rolling mill in different operating states, in accordance with a second embodiment of the invention.
  • FIGS. 6a and 6b show the formation of a hollow ingot by a piercing mandrel of a press
  • FIG. 7 shows elongation of the hollow ingot of FIG. 5 on a push bench.
  • a mandrel rod 2 is inserted into a tubular bloom 1.
  • the mandrel rod 2 serves as an internal tool during the stretching operation which, in the present embodiment is performed on a skew-rolling line. Only one skew-roll 3 of the rolling line is shown in FIG. 1. It will also be seen that the mandrel rod 2 fills substantially the entire interior space 5 of the tubular bloom 1 in the rolling direction X upstream of the skew-roll 3, this applying entirely to a portion of the region in which the skew-roll 3 engages the tubular bloom 1. Consequently, atmospheric oxygen is largely kept away from the interior wall 4 of the tubular bloom 1, and the formation of scale is avoided.
  • a larger interior space 5 occurs only between the interior wall 4 of the tubular bloom 1 and the mandrel rod 2 downstream of the skew-roll 3 in the rolling direction X, and would be filled with air if inert gas did not displace this air and hence also the oxygen in the air, as is done in accordance with the invention.
  • the inert gas is blown into the interior space 5 through outlet bores 6 provided in the head of the mandrel rod 2.
  • FIG. 2 Only one of these bores is shown in section in FIG. 2, and a feed tube 7 may be seen through which the inert gas is fed to a manifold chamber 8 from which it may flow into the interior space 5 of the tubular bloom 1 through the outlet bores 6.
  • the feed tube 7 for the inert gas is surrounded by a water feed tube 9 which forms two annular chambers 10 and 11 through which cooling water is fed and discharged, hence ensuring adequate cooling of the mandrel rod 2.
  • FIG. 3 shows two skew rolls 12 and 13 which produce a hollow ingot 14 from an ingot introduced at the entry end.
  • the skew rolls 12 and 13 roll the hollow ingot 14 over a plug 16 of a plug rod 7, the advance movement being produced in a conventional manner by the skew rolls 12 and 13.
  • a ram 18 serves to push the ingot 15 between the skew rolls 12 and 13 chiefly only at the commencement of the rolling operation. However, the end of the rolling operation is illustrated, and the ram 18 has again been pushed against the trailing end face of the ingot 15. It follows the advance movement of the ingot 15, as is shown in FIG. 4.
  • FIG. 4 shows two skew rolls 12 and 13 which produce a hollow ingot 14 from an ingot introduced at the entry end.
  • the skew rolls 12 and 13 roll the hollow ingot 14 over a plug 16 of a plug rod 7, the advance movement being produced in a conventional manner by the skew rolls 12 and 13.
  • a ram 18 serves to push the ingot 15 between the ske
  • FIGS. 6a and 6b illustrate the operation of press 20.
  • a hot ingot is provided within die 22 of press 20 and as shown in FIG. 6b, an internal piercing tool in the form of a piercing mandrel 26 is utilized to pierce the hot ingot to form a hollow ingot.
  • Piercing mandrel 26 is provided with an internal passageway leading to bores 27 for the simultaneous introduction of either an inert gas or an non-oxidizing gas through mandrel 26 into the space within the hollow ingot being vacated by the withdrawal of mandrel 26 as mandrel 26 is withdrawn from die 22.
  • an inert gas or a non-oxidizing gas may be blown into the hollow ingot so that its inner walls cannot form a scale.
  • the pierced ingot 24 is conveyed to a push bench 30 at which a shaft rod 31 and an mandrel rod 32 are utilized to push hollow ingot 24 through rollers 35 to elongate the hollow ingot 24 for form a tubular bloom.
  • Closed end 24a of the hollow ingot 24 provides an abutment which may be engaged by end 33 of mandrel rod 32 to provide a means for pushing the hollow ingot through the rollers 35.
  • the dashed lines extending through shaft rod 31 and mandrel rod 32 indicate a longitudinal borehole for the passage of an inert gas from a reservoir, not shown, to bores entering end 33 of mandrel rod 32 to provide inert gas into the inner space of ingot 24 as mandrel rod 32 is withdrawn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
US07/137,463 1984-09-01 1987-12-23 Methods and apparatus for manufacturing seamless tube Expired - Fee Related US4928507A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3432288A DE3432288C2 (de) 1984-09-01 1984-09-01 Anwendung von Inertgas beim Herstellen nahtloser Rohre
DE3432288 1984-09-01

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06770730 Continuation 1985-08-29

Publications (1)

Publication Number Publication Date
US4928507A true US4928507A (en) 1990-05-29

Family

ID=6244499

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/137,463 Expired - Fee Related US4928507A (en) 1984-09-01 1987-12-23 Methods and apparatus for manufacturing seamless tube

Country Status (6)

Country Link
US (1) US4928507A (de)
AT (1) AT391641B (de)
DE (1) DE3432288C2 (de)
FR (1) FR2569582B1 (de)
GB (1) GB2163691B (de)
IT (1) IT1185852B (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546647A (en) * 1993-04-06 1996-08-20 Pruna; Alberto N. Method of making an ejector tube for molds
US6219914B1 (en) * 1998-09-28 2001-04-24 Mannesmann Ag Process for producing a cylinder with a bulge
US20040007033A1 (en) * 2000-12-20 2004-01-15 Matti Leiponen Method and apparatus for manufacturing tubes
US20040035165A1 (en) * 2000-12-20 2004-02-26 Matti Leiponen Method and apparatus for manufacturing tubes by rolling
US20040200249A1 (en) * 2003-04-12 2004-10-14 Sms Meer Gmbh Method of and apparatus for producing tubes of metal
US20060053859A1 (en) * 2004-09-16 2006-03-16 Paul Fullerton Push bench and method of manufacturing small diameter tubing
US20070186604A1 (en) * 2003-12-30 2007-08-16 Robert Koppensteiner Method and apparatus for producing a cylindriacal hollow body from a blank
US20100011831A1 (en) * 2007-03-30 2010-01-21 Naoya Hirase Piercing mill
US20110204611A1 (en) * 2010-02-18 2011-08-25 Daimler Trucks North America Llc Fiber reinforced polymer frame rail
USRE44308E1 (en) * 2004-01-16 2013-06-25 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing seamless pipes or tubes
CN103240274A (zh) * 2013-05-10 2013-08-14 攀钢集团成都钢钒有限公司 穿孔机顶头装置、穿孔机以及无缝钢管生产方法
US20140033781A1 (en) * 2012-08-01 2014-02-06 Benteler Deutschland Gmbh Method and device for producing a hollow metallic billet from a metallic billet
US20140223984A1 (en) * 2013-02-12 2014-08-14 Sms Meer Gmbh Rolling mill and rolling method
US20140260494A1 (en) * 2011-11-01 2014-09-18 Nippon Steel & Sumitomo Metal Corporation Piercing apparatus, plug used for piercing apparatus, and method for producing seamless steel pipe
CN105798064A (zh) * 2016-05-06 2016-07-27 鑫鹏源智能装备集团有限公司 一种具有新型冷却方式的顶头顶杆组件
CN106984649A (zh) * 2017-05-22 2017-07-28 重庆龙煜精密铜管有限公司 一种三辊行星轧机铸坯内孔氮气充气机构
US9833820B2 (en) 2012-09-26 2017-12-05 Sms Meer Gmbh Deoxidation of cross-rolled hollow blocks
CN108080418A (zh) * 2017-12-26 2018-05-29 太原重型机械集团工程技术研发有限公司 用于无缝钢管生产中的抗氧化剂喷涂装置和工艺
CN109127771A (zh) * 2018-08-30 2019-01-04 东北大学 一种利用多层金属极薄带卷复合制备无缝管的方法
CN109454118A (zh) * 2018-12-12 2019-03-12 太原通泽重工有限公司 无缝管热连轧穿棒在线喷硼砂机构及穿棒在线喷硼砂方法
CN110355208A (zh) * 2019-07-31 2019-10-22 扬州诚德钢管有限公司 一种穿孔顶杆顶头冷却和毛管内吹氮气抗氧化装置
CN110695092A (zh) * 2019-10-23 2020-01-17 广东海亮铜业有限公司 一种不间断氮气吹扫系统
CN113172092A (zh) * 2021-05-12 2021-07-27 浙江传播者金属装饰材料有限公司 钢管生产设备

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH674477A5 (de) * 1988-03-30 1990-06-15 Lonza Ag
US5099667A (en) 1989-06-16 1992-03-31 Lonza Ltd. System for suspending and applying solid lubricants to tools or work pieces
DE4004155A1 (de) * 1990-02-10 1991-08-14 Kocks Technik Verfahren und vorrichtung zum kuehlen und schmieren von dornstangen
ES2063987T3 (es) 1990-03-26 1995-01-16 Lonza Ag Procedimiento para la pulverizacion intermitente de un liquido, sobre todo de una suspension de lubricante, y dispositivo para la realizacion de este procedimiento.
DE4015306C1 (en) * 1990-05-12 1991-06-06 Benteler Ag, 4790 Paderborn, De Metal tube mfg. installation - has preformed, heated metal block removable from press before introduction of nitrogen gas
DE59103403D1 (de) * 1990-07-10 1994-12-08 Lonza Ag Filtriereinrichtung, insbesondere für die Abtrennung von Grobpartikeln aus einer Schmiermittel-Suspension, und deren Verwendung.
DE19604969C2 (de) * 1996-02-02 2000-08-24 Sms Demag Ag Verfahren zur Herstellung von nahtlosen Rohren und Innenwerkzeug
DE19636321C1 (de) * 1996-08-29 1997-11-20 Mannesmann Ag Verfahren zur Standzeiterhöhung von Lochdornen in Schrägwalzwerken
CN102233355A (zh) * 2010-04-28 2011-11-09 洛阳璋泰非标机械有限公司 热轧小直径无缝钢管减径轧制段加限动芯棒的工艺方法
DE102011012761A1 (de) 2011-03-01 2012-05-24 Sms Meer Gmbh Verfahren und Vorrichtung zum Erzeugen eines Hohlblocks, Innenwerkzeug mit einer Dornstange und einem Lochdorn, Verwendung eines Innenwerkzeugs und Verwendung eines Deoxidationsmittels
DE102011120890B4 (de) * 2011-12-09 2015-06-18 Benteler Deutschland Gmbh Verfahren zur Herstellung eines mehrschichtigen Metallrohres und danach hergestelltes mehrschichtiges Metallrohr
DE102015212905B4 (de) * 2015-07-09 2020-10-01 Sms Group Gmbh Vorrichtung und Verfahren zur Herstellung nahtloser Rohre
DE102016207138B4 (de) 2016-04-27 2018-05-30 Sms Group Gmbh Verfahren und Vorrichtung zum Kühlen eines Werkzeugs

Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682724A (en) * 1925-12-29 1928-08-28 Bungeroth Rudolf Tube expander
US1784791A (en) * 1927-06-14 1930-12-09 Gruber Karl Rolling mill
US1936790A (en) * 1931-02-18 1933-11-28 Demag Ag Tube drawing apparatus
US2017389A (en) * 1932-06-02 1935-10-15 Nat Tube Co Mill mandrel bar
US2025439A (en) * 1933-05-20 1935-12-24 Brownstein Benjamin Mandrel bar for continuous tube rolling mills
US2031014A (en) * 1932-04-23 1936-02-18 Habirshaw Cable And Wire Corp Machine for making electrical cables
US2363476A (en) * 1942-04-08 1944-11-28 Nat Tube Co Method and apparatus for manufacturing seamless pipes and tubes
DE1027623B (de) * 1957-03-14 1958-04-10 Aluminium Walzwerke Singen Dornstange fuer Ziehbaenke
US3196648A (en) * 1962-04-30 1965-07-27 Dow Chemical Co Impact extrusion process
US3350906A (en) * 1964-10-26 1967-11-07 Intercontinental Mfg Company I Forming apparatus and methods
US3374650A (en) * 1964-09-09 1968-03-26 Contubind Sa Manufacturing seamless tubes
DE2356985A1 (de) * 1973-11-15 1975-05-22 Kabel Metallwerke Ghh Verfahren zur herstellung nahtloser metallischer rohre
US3893318A (en) * 1974-07-17 1975-07-08 United Aircraft Corp Forging apparatus
SU284801A1 (ru) * 1968-05-14 1977-12-05 Khejfets G N Устройство дл закалки труб с прокатного нагрева
JPS5443164A (en) * 1977-09-13 1979-04-05 Nippon Steel Corp Rolling method for hollow piece
JPS55120405A (en) * 1979-03-06 1980-09-16 Sumitomo Metal Ind Ltd Rolling method for seamless steel pipe
DE2929401A1 (de) * 1979-07-20 1981-02-05 Kabel Metallwerke Ghh Verfahren zum walzen von in der waerme zur oxidation neigenden metallbloecken zu rohren
JPS56105804A (en) * 1980-01-24 1981-08-22 Kawasaki Steel Corp Treating method for inner surface of sheel on feed-in side of elongator mill in pipe forming method by mannesmann mill
GB2099738A (en) * 1981-05-29 1982-12-15 Mannesmann Ag Rolling pipes
US4368630A (en) * 1980-03-10 1983-01-18 Kabel- Und Metallwerke Gutehoffnungshutte Ag Mandrel exchange in piercing mills
JPS5835005A (ja) * 1981-08-27 1983-03-01 Sumitomo Metal Ind Ltd マンネスマン穿孔機による穿孔方法
GB2105627A (en) * 1981-09-14 1983-03-30 Kocks Technik Rolling mill plant for the manufacture of seamless tubes
US4393566A (en) * 1980-05-10 1983-07-19 Kabel-Und Metallwerke Gutehoffnungshutte Ag Processing of copper tubing
JPS58157544A (ja) * 1982-03-12 1983-09-19 Goto Tanko Kk 鍛造法
JPS5933011A (ja) * 1982-08-19 1984-02-22 Kawasaki Steel Corp 継目無鋼管の製造方法
JPS5933010A (ja) * 1982-08-19 1984-02-22 Kawasaki Steel Corp 継目無鋼管製造用穿孔装置
GB2135336A (en) * 1983-02-24 1984-08-30 Dalmine Spa Hot deoxidation of semifinished metal tubes
JPS6033807A (ja) * 1983-08-06 1985-02-21 Sumitomo Metal Ind Ltd 継目無管の製造方法及び穿孔機
US4578974A (en) * 1983-08-02 1986-04-01 Aetna-Standard Engineering Company Seamless tube mill

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739800A1 (de) * 1977-09-03 1979-03-22 Schloemann Siemag Ag Verfahren und einrichtung zur herstellung von kupferrohren, insbesondere mittels indirekt-metallstrangpressen

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682724A (en) * 1925-12-29 1928-08-28 Bungeroth Rudolf Tube expander
US1784791A (en) * 1927-06-14 1930-12-09 Gruber Karl Rolling mill
US1936790A (en) * 1931-02-18 1933-11-28 Demag Ag Tube drawing apparatus
US2031014A (en) * 1932-04-23 1936-02-18 Habirshaw Cable And Wire Corp Machine for making electrical cables
US2017389A (en) * 1932-06-02 1935-10-15 Nat Tube Co Mill mandrel bar
US2025439A (en) * 1933-05-20 1935-12-24 Brownstein Benjamin Mandrel bar for continuous tube rolling mills
US2363476A (en) * 1942-04-08 1944-11-28 Nat Tube Co Method and apparatus for manufacturing seamless pipes and tubes
DE1027623B (de) * 1957-03-14 1958-04-10 Aluminium Walzwerke Singen Dornstange fuer Ziehbaenke
US3196648A (en) * 1962-04-30 1965-07-27 Dow Chemical Co Impact extrusion process
US3374650A (en) * 1964-09-09 1968-03-26 Contubind Sa Manufacturing seamless tubes
US3350906A (en) * 1964-10-26 1967-11-07 Intercontinental Mfg Company I Forming apparatus and methods
SU284801A1 (ru) * 1968-05-14 1977-12-05 Khejfets G N Устройство дл закалки труб с прокатного нагрева
DE2356985A1 (de) * 1973-11-15 1975-05-22 Kabel Metallwerke Ghh Verfahren zur herstellung nahtloser metallischer rohre
US3893318A (en) * 1974-07-17 1975-07-08 United Aircraft Corp Forging apparatus
JPS5443164A (en) * 1977-09-13 1979-04-05 Nippon Steel Corp Rolling method for hollow piece
JPS55120405A (en) * 1979-03-06 1980-09-16 Sumitomo Metal Ind Ltd Rolling method for seamless steel pipe
DE2929401A1 (de) * 1979-07-20 1981-02-05 Kabel Metallwerke Ghh Verfahren zum walzen von in der waerme zur oxidation neigenden metallbloecken zu rohren
JPS56105804A (en) * 1980-01-24 1981-08-22 Kawasaki Steel Corp Treating method for inner surface of sheel on feed-in side of elongator mill in pipe forming method by mannesmann mill
US4368630A (en) * 1980-03-10 1983-01-18 Kabel- Und Metallwerke Gutehoffnungshutte Ag Mandrel exchange in piercing mills
US4393566A (en) * 1980-05-10 1983-07-19 Kabel-Und Metallwerke Gutehoffnungshutte Ag Processing of copper tubing
GB2099738A (en) * 1981-05-29 1982-12-15 Mannesmann Ag Rolling pipes
JPS5835005A (ja) * 1981-08-27 1983-03-01 Sumitomo Metal Ind Ltd マンネスマン穿孔機による穿孔方法
GB2105627A (en) * 1981-09-14 1983-03-30 Kocks Technik Rolling mill plant for the manufacture of seamless tubes
JPS58157544A (ja) * 1982-03-12 1983-09-19 Goto Tanko Kk 鍛造法
JPS5933011A (ja) * 1982-08-19 1984-02-22 Kawasaki Steel Corp 継目無鋼管の製造方法
JPS5933010A (ja) * 1982-08-19 1984-02-22 Kawasaki Steel Corp 継目無鋼管製造用穿孔装置
GB2135336A (en) * 1983-02-24 1984-08-30 Dalmine Spa Hot deoxidation of semifinished metal tubes
US4578974A (en) * 1983-08-02 1986-04-01 Aetna-Standard Engineering Company Seamless tube mill
JPS6033807A (ja) * 1983-08-06 1985-02-21 Sumitomo Metal Ind Ltd 継目無管の製造方法及び穿孔機

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546647A (en) * 1993-04-06 1996-08-20 Pruna; Alberto N. Method of making an ejector tube for molds
US6219914B1 (en) * 1998-09-28 2001-04-24 Mannesmann Ag Process for producing a cylinder with a bulge
US20040007033A1 (en) * 2000-12-20 2004-01-15 Matti Leiponen Method and apparatus for manufacturing tubes
US20040035165A1 (en) * 2000-12-20 2004-02-26 Matti Leiponen Method and apparatus for manufacturing tubes by rolling
US6892559B2 (en) * 2000-12-20 2005-05-17 Outokumpu Oyj Method and apparatus for manufacturing tubes
US6920773B2 (en) * 2000-12-20 2005-07-26 Outokumpu Oyj Method and apparatus for manufacturing tubes by rolling
US20040200249A1 (en) * 2003-04-12 2004-10-14 Sms Meer Gmbh Method of and apparatus for producing tubes of metal
US6976377B2 (en) * 2003-04-12 2005-12-20 Sms Meer Gmbh Method of and apparatus for producing tubes of metal
US7434434B2 (en) * 2003-12-30 2008-10-14 Gfm Beteiligungs- Und Management Gmbh & Co Kg Method and apparatus for producing a cylindrical hollow body from a blank
US20070186604A1 (en) * 2003-12-30 2007-08-16 Robert Koppensteiner Method and apparatus for producing a cylindriacal hollow body from a blank
USRE44308E1 (en) * 2004-01-16 2013-06-25 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing seamless pipes or tubes
US8387434B2 (en) 2004-09-16 2013-03-05 United States Steel Corporation Push bench and method of manufacturing small diameter tubing
US7290424B2 (en) 2004-09-16 2007-11-06 Lone Star Steel Company, L.P. Push bench method for manufacturing small diameter tubing
US7621164B2 (en) * 2004-09-16 2009-11-24 United States Steel Corporation Push bench and method of manufacturing small diameter tubing
US20080028815A1 (en) * 2004-09-16 2008-02-07 Paul Fullerton Push Bench and Method of Manufacturing Small Diameter Tubing
US20100064757A1 (en) * 2004-09-16 2010-03-18 Paul Fullerton Push Bench and Method of Manufacturing Small Diameter Tubing
US20060053859A1 (en) * 2004-09-16 2006-03-16 Paul Fullerton Push bench and method of manufacturing small diameter tubing
US8104316B2 (en) * 2007-03-30 2012-01-31 Sumitomo Metal Industries, Ltd. Piercing mill
US20100011831A1 (en) * 2007-03-30 2010-01-21 Naoya Hirase Piercing mill
US20110204611A1 (en) * 2010-02-18 2011-08-25 Daimler Trucks North America Llc Fiber reinforced polymer frame rail
US20140260494A1 (en) * 2011-11-01 2014-09-18 Nippon Steel & Sumitomo Metal Corporation Piercing apparatus, plug used for piercing apparatus, and method for producing seamless steel pipe
US9545658B2 (en) * 2011-11-01 2017-01-17 Nippon Steel & Sumitomo Metal Corporation Piercing apparatus, plug used for piercing apparatus, and method for producing seamless steel pipe
US20140033781A1 (en) * 2012-08-01 2014-02-06 Benteler Deutschland Gmbh Method and device for producing a hollow metallic billet from a metallic billet
US9833820B2 (en) 2012-09-26 2017-12-05 Sms Meer Gmbh Deoxidation of cross-rolled hollow blocks
US9789522B2 (en) * 2013-02-12 2017-10-17 Sms Group Gmbh Rolling mill and rolling method
US20140223984A1 (en) * 2013-02-12 2014-08-14 Sms Meer Gmbh Rolling mill and rolling method
CN103240274A (zh) * 2013-05-10 2013-08-14 攀钢集团成都钢钒有限公司 穿孔机顶头装置、穿孔机以及无缝钢管生产方法
CN105798064A (zh) * 2016-05-06 2016-07-27 鑫鹏源智能装备集团有限公司 一种具有新型冷却方式的顶头顶杆组件
CN106984649A (zh) * 2017-05-22 2017-07-28 重庆龙煜精密铜管有限公司 一种三辊行星轧机铸坯内孔氮气充气机构
CN106984649B (zh) * 2017-05-22 2018-06-26 重庆龙煜精密铜管有限公司 一种三辊行星轧机铸坯内孔氮气充气机构
CN108080418A (zh) * 2017-12-26 2018-05-29 太原重型机械集团工程技术研发有限公司 用于无缝钢管生产中的抗氧化剂喷涂装置和工艺
CN109127771A (zh) * 2018-08-30 2019-01-04 东北大学 一种利用多层金属极薄带卷复合制备无缝管的方法
CN109454118A (zh) * 2018-12-12 2019-03-12 太原通泽重工有限公司 无缝管热连轧穿棒在线喷硼砂机构及穿棒在线喷硼砂方法
CN110355208A (zh) * 2019-07-31 2019-10-22 扬州诚德钢管有限公司 一种穿孔顶杆顶头冷却和毛管内吹氮气抗氧化装置
CN110695092A (zh) * 2019-10-23 2020-01-17 广东海亮铜业有限公司 一种不间断氮气吹扫系统
CN110695092B (zh) * 2019-10-23 2024-06-04 广东海亮铜业有限公司 一种不间断氮气吹扫系统
CN113172092A (zh) * 2021-05-12 2021-07-27 浙江传播者金属装饰材料有限公司 钢管生产设备

Also Published As

Publication number Publication date
GB2163691A (en) 1986-03-05
ATA179785A (de) 1990-05-15
AT391641B (de) 1990-11-12
FR2569582B1 (fr) 1992-12-11
IT8521847A0 (it) 1985-08-02
IT1185852B (it) 1987-11-18
DE3432288A1 (de) 1986-03-13
GB2163691B (en) 1987-11-04
FR2569582A1 (fr) 1986-03-07
GB8521565D0 (en) 1985-10-02
DE3432288C2 (de) 1987-01-02

Similar Documents

Publication Publication Date Title
US4928507A (en) Methods and apparatus for manufacturing seamless tube
US4577481A (en) Process for production of seamless tube and apparatus for processing seamless tube
US4262516A (en) Pierced metal tube blanks and methods of making such blanks
US4318294A (en) Method of manufacturing seamless metal pipes and tubes
US4967583A (en) Method of manufacturing extruded seamless hollow materials
JP2002321034A (ja) 中空ラックバー形状物の成形方法及び装置
JPH0536121B2 (de)
US3462987A (en) Method of manufacturing closed end tubular products
CA1179170A (en) Method of manufacturing seamless steel pipes
JPH0716689B2 (ja) 内面高フィン管及び内面高フィン型二重管の製造方法
US4006622A (en) Continuous process for the production of very long precision tubes and installation for carrying out the process
JP2982669B2 (ja) 幅圧下プレス装置の金型および幅圧下方法
JP3633281B2 (ja) 金属管の押出製造方法
JPH06304644A (ja) 内径テーパ管の製造方法
JPS62252611A (ja) マンドレル押出管の偏肉改善押出方法
JPS58119408A (ja) 継目無鋼管の延伸圧延方法
US3404552A (en) Billet piercing and extrusion
JP2705499B2 (ja) 熱間継目無炭素鋼鋼管の製造方法
JPH0824911A (ja) 継目無管の拡管圧延装置
US870246A (en) Method of making seamless tubing.
JPS62286610A (ja) 熱間継目無鋼管の製法
US3123893A (en) Method of working sheet
SU1113193A1 (ru) Способ прокатки труб
SU1759489A1 (ru) Способ гор чей пилигримовой прокатки труб
JPH07314015A (ja) 継ぎ目無し鋼管の圧延設備及び圧延方法

Legal Events

Date Code Title Description
CC Certificate of correction
FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19980603

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362